Roll for harness loop-tugs



J. WAGNER;

ROLL FOR HARNESS LOOP T UGS.

(No Model.)

No. 322,570. Patented July 21, 18815.

N. FETERS, Phah-Lilhugmphen Walhinginn. n. c,

JULIUS WAGNER, or READING, PENNSYLVANIA.

ROLL FOR HARNESS LOOP-TUGS.

SPECIFICATION forming part of Letters Patent No. 322,570, dated July 21,1885.

Application filed May 21, 1885. (No model.)

To all whom, it may concern:

Be it known thatv I, JULIUs WAGNER, a citizen of the. United States,resident at the city of Reading, county of Berks, State of Pennsylvania,have invented a new and useful Improvement in Rollers for Harness Loop-Tugs, of which the following is a specification.

This improvement relates more particularly to rolls forthill-loops ofthe construction described and claimed in my patent of July 22,1884,numbered 302,452, (shaft-loop.)

The object of the improvement is to provide a light and efficient rollfor shaft-loops, &c., that may be used indifferently as cast of suitablemetal, or as subsequently covered with an elastic material.

The drawings herewith show very fully the construction of the roll,likeletters of reference indicating like parts.

Figure 1 represents the roll in front elevation, one-half shown inlongitudinal section, with short axlebearings in the ends. Fig. 2 is across-section on the line a a of Fig. 1. Fig. 3 represents the rollprovided with a continuous bearing for the axle and end perforations forreleasing the core one-half in section; Fig. 4, an end elevation of thesame. Fig. 5 represents a front elevation, one-half shown in section ofa roll formed with in tegral pivots or axles, in all of which Arepresents the shell or body of a metallic or equivalent roll; A, theends; A the bore or perforation 'for the axle-bearing. B repre sents acontinuous bearing for the axle; B, end perforations to lighten theroll, and permit the withdrawal of the cores subsequent to casting; O,pivots or axles cast integral with the roll; D, an elastic covering,preferably of rubber, which is applied to the roll to reduce the wearupon the thills, and also to reduce the jar upon the harness-saddle bycushioning the same upon the roll.

In attaching anti-friction rollers to thill or shaft loops of harness,it is important ,while seeking for the best article for wear, not tolose sight of the equally -important effect of lightness and cheapnessin the completed roll. From along series of experiments practicallycarried out I have discovered that a cast-iron or metallic roll gave themost satisfactory resultas towear, but was objectionable on account ofits weight. This objection is now overcome by constructing the samehollow, using the bore perforations in the ends, where a short bearingwas given to the axle, or special end perforations when the roll isgiven a spool bearing within its body, or is provided with integralaxles, by means of which the cores may be withdrawn from the casting.

Rollers, as shown and described, may be applied directly in a horizontalor vertical position within a properly-constructed shaftloop, and willgive good results as to wear, while adding very little additional weightto the harness.

For fine harness, and wherever it is desired to reduce the wear upon thethills, and do away with the noise attendant upon the use of metallictug loops and rolls in contact with hard wood thills, I draw'over therolls, con.- structed as described,an elastic covering, preferably usingrubber hose of a suitable interior diameter for the purpose, andsubsequent ly cutting the same to the proper length. Leather or anequivalent material may be substituted for the rubber; but as the latterin the form of hose is procurable as a regular article of ,manufacture,and requires no special preparation to adapt it to the purpose, I use itin preference to any other article with which I am conversant.

The advantages connected with the use of the compound roll for tug-looppurposes,outside of its cushioning properties, isthat when moved, a newone being substituted; or the itself without change, and will continueto serve the purpose of its introduction, but of course no longer asilent cushioner of the shocks transmitted from the vehicle to thethills.

The rollers having integral axles O are applicable'to thill-loops, whichare separable, within which the rolls are laid in place, the loops beingsubsequently bolted or secured to form an integral whole.

Having shown the construction of my improved roll,described its use andadvantages, I desire to secure by Letters Patent the following claimsthereon:

1. As an improved manufacture, a shellthe covering is worn through itmay be re wear may be transferred to the metallic roller roll withcentral bearings covered with rubbination with an elastic cover,substantially her or its equivalent, and adapted for use with as shownand for the purpose set forth. a harness loop-tug, as shown, described,and

for the purpose set forth. JULIUS WAGNER 5 2. As an improved roll forharness loop- \Vitnesses:

tugs, a metallic shell provided with end per- A. E..Lo01vns,

forations and integral pivots or axles, in com- F. PIERCE HUMMEL.

